Comments: MicroSD Shield and SD Breakout Hookup Guide
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I'm a little confused. What are the I2C jumpers for? The pins are connected on the Arduino Uno pcb. I don't see how disconnecting them on the shield makes a difference.
I believe the idea is to make the shield compatible with both old Arduinos and the Leonardo- BUT: the way I wrote that section is misleading (in that removing the jumper does not magically let you use A4/A5 and the I2C library simultaneously on an UNO). I'll get it updated.
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Can this use the same library as the QWIIC openlog microsd breakout?